ceph.spec: add missing ceph_test_rados_api_cmd to package

Signed-off-by: Sage Weil <sage@inktank.com>
ceph.spec: include by-partuuid udev workaround rules

These are need for old or buggy udev.  Having them for new and unbroken
udev is harmless.

Signed-off-by: Sage Weil <sage@inktank.com>